1 """ 2 Test the solution to issue 11581. 3 valobj.AddressOf() returns None when an address is 4 expected in a SyntheticChildrenProvider 5 """ 6 7 import os, time 8 import unittest2 9 import lldb 10 import lldbutil 11 from lldbtest import * 12 13 class Issue11581TestCase(TestBase): 14 15 mydir = os.path.join("expression_command", "issue_11588") 16 17 def test_11581_commands(self): 18 # This is the function to remove the custom commands in order to have a 19 # clean slate for the next test case. 20 def cleanup(): 21 self.runCmd('type synthetic clear', check=False) 22 23 24 # Execute the cleanup function during test case tear down. 25 self.addTearDownHook(cleanup) 26 27 """valobj.AddressOf() should return correct values.""" 28 self.buildDefault() 29 30 exe = os.path.join(os.getcwd(), "a.out") 31 32 target = self.dbg.CreateTarget(exe) 33 self.assertTrue(target, VALID_TARGET) 34 35 breakpoint = target.BreakpointCreateBySourceRegex('Set breakpoint here.',lldb.SBFileSpec ("main.cpp", False)) 36 37 process = target.LaunchSimple (None, None, os.getcwd()) 38 self.assertTrue (process, "Created a process.") 39 self.assertTrue (process.GetState() == lldb.eStateStopped, "Stopped it too.") 40 41 thread_list = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint) 42 self.assertTrue (len(thread_list) == 1) 43 thread = thread_list[0] 44 45 self.runCmd("command script import --allow-reload s11588.py") 46 self.runCmd("type synthetic add --python-class s11588.Issue11581SyntheticProvider StgClosure") 47 48 self.expect("expr --show-types -- *((StgClosure*)(r14-1))", 49 substrs = ["(StgClosure) $", 50 "(StgClosure *) &$","0x", 51 "addr = ", 52 "load_address = "]) 53 54 55 target = lldb.debugger.GetSelectedTarget() 56 process = target.GetProcess() 57 # register r14 does not exist on 32-bit architectures, it is an x86_64 extension 58 # let's skip this part of the test if we are in 32-bit mode 59 if process.GetAddressByteSize() == 8: 60 frame = process.GetSelectedThread().GetSelectedFrame() 61 pointer = frame.FindVariable("r14") 62 addr = pointer.GetValueAsUnsigned(0) 63 self.assertTrue(addr != 0, "could not read pointer to StgClosure") 64 addr = addr - 1 65 self.runCmd("register write r14 %d" % addr) 66 self.expect("register read r14", 67 substrs = ["0x",hex(addr)[2:].rstrip("L")]) # Remove trailing 'L' if it exists 68 self.expect("expr --show-types -- *(StgClosure*)$r14", 69 substrs = ["(StgClosure) $", 70 "(StgClosure *) &$","0x", 71 "addr = ", 72 "load_address = ", 73 hex(addr)[2:].rstrip("L"), 74 str(addr)]) 75 76 77 if __name__ == '__main__': 78 import atexit 79 lldb.SBDebugger.Initialize() 80 atexit.register(lambda: lldb.SBDebugger.Terminate()) 81 unittest2.main() 82